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ec100cf00f
Improved function documentation Fixed dlarfb and dlarft and added full tests Added dgelq2 Working Dgels Fix many comments and tests Many PR comment responses Responded to more PR comments Many PR comments
38 lines
1.0 KiB
Go
38 lines
1.0 KiB
Go
// Copyright ©2015 The gonum Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package native
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import "github.com/gonum/blas"
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// Dlaset sets the off-diagonal elements of a to alpha, and the diagonal elements
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// of a to beta. If uplo == blas.Upper, only the upper diagonal elements are set.
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// If uplo == blas.Lower, only the lower diagonal elements are set. If uplo is
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// otherwise, all of the elements of a are set.
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func (impl Implementation) Dlaset(uplo blas.Uplo, m, n int, alpha, beta float64, a []float64, lda int) {
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checkMatrix(m, n, a, lda)
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if uplo == blas.Upper {
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for i := 0; i < m; i++ {
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for j := i + 1; j < n; j++ {
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a[i*lda+j] = alpha
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}
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}
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} else if uplo == blas.Lower {
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for i := 0; i < m; i++ {
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for j := 0; j < i; j++ {
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a[i*lda+j] = alpha
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}
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}
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} else {
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for i := 0; i < m; i++ {
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for j := 0; j < n; j++ {
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a[i*lda+j] = alpha
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}
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}
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}
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for i := 0; i < min(m, n); i++ {
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a[i*lda+i] = beta
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}
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}
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